John waggonneb



( 0 Model.

v J. WAGGONNER. 'PITMAN COUPLING FOR HARVESTERS. Ila 297,882. v PatentedApr. 29,1884,

E I I ENTOR:.

- ATTORNEYS.

UNITED STATES PATENT OFFICE.

JOHN WAGGONNER, OF NEW HAMPTON, MISSOURI.

PITMAN-COUPLING FOR HARVESTERS.

SPECIFICATION forming part of Letters Patent No. 297,882, dated April29, 1884-.

Application filed February 15, 184. (No model.)

To all whom it may concern.-

' Be it known that I, J OHN WAGGONNER, a citizen of the United States,and a resident of New Hampton, in the county of Harrison and State ofMissouri, have invented certain new and useful Improvements inPitman-Oouplings for Harvesters; and I do hereby declare that thefollowing is a full, clear, and exact description I of the invention,which .will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,which form a 1 part of this specification, and in which Figure 1 is aperspective view of my improved coupling. Fig. 2 is a longitudinalsectional view ofthe same. Fig. 3 is a crosssection through line :1; av,showing the pitman set at right angles to the head of the sicklebar; andFig. 4 is a perspective view of the device for taking up slack or lostmotion.

Similar letters of reference indicate corresponding parts in all thefigures. My invention has relation to pitman-couplings for harvesters;and it consists in the im- 2 5 proved construction and combination ofparts of the coupling, as hereinafter more fully described and claimed,whereby lost motion caused by the wearing out of the connection betweenthe pitman and the head of the sickle- 0 bar may be taken up orcompensated for, as occasion requires, in a simple and expeditiousmanner.

In the accompanying drawings, A is the pit man, and B the head of thesickle-bar,which 5 has the usual lugs or ears, 0, between which the eyeD of the pitman is hung or journaled by means of the bolt E. The sidesof the ears 0 are rounded or beveled, as shown at F, to I fit the insideof a cup-shaped nut, G, which is screwed upon the inner end of thepitman, and held in place thereon by the jam-nut H. The hollow part orcup of the nut G is of such a shape that it will fit upon and slightlyoverlap the rounded or beveled shoulders Fpf the lugs or ears 0, and itfollows that as this nut 4 is screwed down upon the pitman it will hebrought to bear against the ears, without, however, preventing play ofthe-pitmanin its bearing. 7

' From the foregoing description, taken in 5' connection with thedrawings, the operation of the device will be readily understood withoutrequiring further explanation. In order to take up or compensate forlost motion, it is only necessary to screw down the cup-shaped 5 nut Guntil it bears lightly against the rounded shoulders of thecoupling-ears G, and then fasten it in its position upon the pitman bytightening down the jam-nut H. This adjustment can be effected in amoment of time 6 and without uncoupling the pitman from the sickle-bar.V Having thus described my invention, I claim and desire to secure byLetters Patent of the United States- 6 The combination, in apitman-coupling for harvesters, of the sickle-bar head provided with therounded or beveled ears orprojections 0 F, the coupling pin or bolt, thepitman-rod screw-threaded at its inner end, and 7' having an eye for theinsertion of the bolt. the cup-shaped nut adapted to fit the rounded orbeveled shoulders F and bear against the same, and the jam-nut wherebythe cup is held in its adjusted position, substantially as 7 and for thepurpose shown and set forth.

In testimony that I claim the foregoing as my own I have hereuntoaffixed my signature in presence of two witnesses.

JOHN WAGGONNER:

